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Base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece
The invention discloses a base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece. A preparation method of the base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece comprises the steps that base metal serves as an inner electrode, the inner electrodes and lead-free piezoelectric ceramic pieces are alternately connected, and the base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece is prepared under the reducing atmosphere co-firing condition. According to the lead-free multilayer piezoelectric ceramic piece, the inner electrodes and the lead-free piezoelectric ceramic pieces are alternately connected, the alternate connection mode is a perforating connection method and a side face connection method, a complete multilayer element can be formed after co-firing of the perforating connection method, the side face connection method does not adopt an expensive perforating machine and an expensive hole filling printing machine. If it is found that an outer electrode does not communicate with the inner electrode, supplemented manufacturing can be conducted to reduce scrap. According to the lead-free multilayer piezoelectric ceramic piece, the piezoelectric constant can be remarkably improved, and the effective piezoelectric constant is n times that of n-timematerial (n is the number of layers).
本发明公开了一种贱金属电极高压电常数无铅多层压电陶瓷片，所述贱金属电极高压电常数无铅多层压电陶瓷片的制备方法为：以贱金属作为内电极，将内电极和无铅压电陶瓷片交替连接，在还原气氛共烧下，得到高压电常数的多层叠加无铅压电陶瓷片。本发明所述的无铅多层压电陶瓷片，将内电极和无铅压电陶瓷片交替连接，所述的交替连接方式为：穿孔连接法、侧面连接法，穿孔连接法共烧完成后就能够形成完整的多层元件，侧面连接法不用昂贵的打孔机和填孔印刷机；发现外电极没有与内电极连通，可以重新补做，减少报废；本发明所述的无铅多层压电陶瓷片，能显著提高压电常数，有效压电常数为n倍（n为层数）材料的n倍。
Base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece
The invention discloses a base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece. A preparation method of the base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece comprises the steps that base metal serves as an inner electrode, the inner electrodes and lead-free piezoelectric ceramic pieces are alternately connected, and the base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece is prepared under the reducing atmosphere co-firing condition. According to the lead-free multilayer piezoelectric ceramic piece, the inner electrodes and the lead-free piezoelectric ceramic pieces are alternately connected, the alternate connection mode is a perforating connection method and a side face connection method, a complete multilayer element can be formed after co-firing of the perforating connection method, the side face connection method does not adopt an expensive perforating machine and an expensive hole filling printing machine. If it is found that an outer electrode does not communicate with the inner electrode, supplemented manufacturing can be conducted to reduce scrap. According to the lead-free multilayer piezoelectric ceramic piece, the piezoelectric constant can be remarkably improved, and the effective piezoelectric constant is n times that of n-timematerial (n is the number of layers).
本发明公开了一种贱金属电极高压电常数无铅多层压电陶瓷片，所述贱金属电极高压电常数无铅多层压电陶瓷片的制备方法为：以贱金属作为内电极，将内电极和无铅压电陶瓷片交替连接，在还原气氛共烧下，得到高压电常数的多层叠加无铅压电陶瓷片。本发明所述的无铅多层压电陶瓷片，将内电极和无铅压电陶瓷片交替连接，所述的交替连接方式为：穿孔连接法、侧面连接法，穿孔连接法共烧完成后就能够形成完整的多层元件，侧面连接法不用昂贵的打孔机和填孔印刷机；发现外电极没有与内电极连通，可以重新补做，减少报废；本发明所述的无铅多层压电陶瓷片，能显著提高压电常数，有效压电常数为n倍（n为层数）材料的n倍。
Base metal electrode high-piezoelectric-constant lead-free multilayer piezoelectric ceramic piece
一种贱金属电极高压电常数无铅多层压电陶瓷片
ZHU HUIXIANG (Autor:in) / QIN CHEN (Autor:in)
29.12.2020
Patent
Elektronische Ressource
Chinesisch
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